SIBLING CONCORDANCE IN SYMPTOM ONSET AND ATROPHY GROWTH RATES IN STARGARDT DISEASE USING ULTRA-WIDEFIELD FUNDUS AUTOFLUORESCENCE.
Retina
; 42(8): 1545-1559, 2022 08 01.
Article
em En
| MEDLINE
| ID: mdl-35344533
ABSTRACT
PURPOSE:
To investigate concordance in symptom onset, area of dark autofluorescence (DAF), and growth rate (GR) between Stargardt disease siblings at an age-matched time point.METHODS:
In this retrospective longitudinal study of sibling pairs with identical biallelic ABCA4 variants, age at symptom onset, best-corrected visual acuity, atrophy area, and effective radius of DAF on ultra-widefield fundus autofluorescence were recorded. Absolute intersibling differences for both eyes were compared with absolute interocular differences using the Mann-Whitney test.RESULTS:
Overall 39 patients from 19 families were recruited. In 16 families, age-matched best-corrected visual acuity and DAF were compared between siblings. In 8 families, DAF GR was compared. The median (range) absolute difference in age at symptom onset between siblings was 3 (0-35) years. Absolute intersibling differences in age-matched best-corrected visual acuity were greater than interocular differences ( P = 0.01). Similarly, absolute intersibling differences in DAF area and radius were greater than interocular differences ( P = 0.04 for area and P = 0.001 for radius). Differences between absolute interocular and intersibling GR were not statistically significant ( P = 0.44 for area GR and P = 0.61 for radius GR).CONCLUSION:
There was significant discordance in age-matched best-corrected visual acuity and DAF beyond the expected limits of interocular asymmetry. Lack of significant intersibling differences in GR warrants further investigation.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Eletrorretinografia
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Doença de Stargardt
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Degeneração Macular
Tipo de estudo:
Diagnostic_studies
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Observational_studies
Limite:
Adolescent
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Adult
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Child
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Child, preschool
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Humans
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Infant
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Newborn
Idioma:
En
Revista:
Retina
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Austrália